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Low Intrusion Conservation Systems for Timber Structures
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EC
CRAF-1999-71216 : LICONS
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24
Months
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LICONS is the chosen acronym for " Low
Intrusion CONservation
Systems
for Timber Structures". These are intended to reduce disturbance
and eliminate the waste that is often associated with fully in situ
methods, thus achieving better construction and large overall project
cost savings.
Techniques for the safe, cost-effective,
restoration and repair of structural timber are essential to maintain
and improve the built environment of European cities. Such techniques
embrace repair strengthening and stiffening of building elements. The
needs arise from a large ageing infrastructure and the desire to
conserve, wherever possible on a like-for-like basis, with minimal
loss of historic fabric. The elimination and repair of decay,
strengthening to ensure compliance with modern building standards,
addressing changes in use (e.g. leading to heavier floor loading), and
making alterations for mobility needs are all examples of where LICONS
technologies are potentially beneficial.
Conservation of the built heritage demands
low-intrusion methods to achieve results with minimum impact. Problems
are experienced currently through occupancy disturbance, involving a
loss of clients' revenue, and through the absence of validated,
quality-assured, systems-based restoration techniques.
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The
purpose of the project is to develop, validate and provide the design
tools for restoration systems. These combine structural
adhesives and FRPs (fibre reinforced plastics/polymers). Such
restoration systems may be applied both to existing timber
elements, and to prefabricated timber replacement and strengthening
components. The motivations for using modern materials are to provide systems
with the following attributes:
- low mass;
- ease and speed of installation with minimum personnel and plant
requirements;
- versatility to suit the unique situation of every repair;
- the potential for introducing 'like-for-like' timber species and
grades;
- completed work that is structurally efficient, conservationally
acceptable and aesthetically pleasing.
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Research
Participants
Rotafix (Northern) Ltd.
TRADA Technology
ECC Timber Engineering Ltd.
Oxford Brookes University
LRBB
LNEC
LegnoDOC
AMTC
STAP
La Bottega del Restauro
Research Sponsors
European Commission Research Directorates General
(CRAFT) Cooperative Research FP5
Contacts:
Christopher Mettem .....
Rob
Bainbridge
Project
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